baber/WOPTO huggingface dataset:
Patent GB-1285052-A (GB)
Title: Polymers
Inventor: HAGGIS GEOFFREY ARTHUR
IPC: C08G18/00
Filed: 1969-03-27
Abstract: 1285052 Isocyanurate polymers IMPERIAL CHEMICAL INDUSTRIES Ltd 13 March 1970 [27 March 1969 16 Jan 1970] 11708/70 and 2243/70 Headings C3C and C3R Isocyanurate polymers are obtained by curing an isocyanate terminated urethane prepolymer containing cyclic groups in the polymer chains, there being not more than 12 atoms in the chain between adjacent cyclic groups, by means of a catalyst capable of promoting trimerization of the isocyanate groups. The urethane prepolymer is suitably prepared by reacting a diol of the formula HO 1 ROH with a molar excess of a diisocyanate having the formula OCN-R-NCO, R 1  and R being such that in the structure there is at least one cyclic group in the chain between the free valencies and no more than 12 atoms in the chain between each cyclic group. It is preferred that both R 1  and R should contain cyclic group. The prepolymer is most suitably a condensate of (a) bis-(isocyanatophenyl) methane or a crude diisocyanatodiaryl alkane composition prepared by phosgenation of crude diaminodiphenyl alkane prepared by reaction of an aromatic amino with an aldehyde or ketone and (b) the product of reacting 2 to 4 moles of propylene oxide with one mole of 2,2-bis-(phydroxyphenyl) propane. Curing catalysts to form the isocyanurate polymer are preferably lead octoate or a combination of phenyl glycidyl ether and N,N-dimethylcyclohexylamine. The isocyanurate polymers may be reinforced with fibres of glas, asbestos, carbon or graphite.
Patent GB-607047-A (GB)
Title: Improvements in or relating to domestic fenders and curbs
IPC: F24B1/192
Filed: 1946-01-24
Abstract: 607,047. Combined curbs and fireguards. BRAMAH & CO., Ltd., J. R., BRAMAH, L., and MORT, J. Jan. 24, 1946, No. 2317. [Class 126] A domestic curb is combined with a collapsable guard which comprises a number of sheet metal elements 28, swinging into and out of troughs in the body of the curb, the elements engaging by slotted connections and being suspended in the form of a fan from similarly pivoted uprights 26 which are held in the vertical position by a clip 41.
Patent GB-122713-A (GB)
Title: An Improved Motor Plough and Tractor.
Inventor: PETTER PERCIVAL WADDAMS
IPC: A01B63/04
Filed: 1918-02-08
Abstract: 122,713. Petter, P. W., and Maskell, J. W. Feb. 8, 1918. Adjusting and connecting forecarriages f o r steering.-In a motor plough applicable f o r use as a tractor by replacing the plough frame by a wheel or wheels, the main frame is made in two parts a, a<1> connected together by a vertical pivot a<2>, the two parts of the frame being turned relatively to one another for steering purposes by means of a hand-wheel g, worm gearing g<3>, quadrant rack i, and pinion i<1>. The vertical pivot a<2> is mounted in bearings in an arch-shaped piece a<3>. The machine is provided with a guiding wheel c adapted to be raised and lowered. According to the Provisional Specification, the vertical pivot a<2> may be mounted in a ring-shaped piece.
Patent GB-414048-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: H04B1/20
Filed: 1933-01-24
Abstract: 414,048. Valve circuits. SOWERBY, A. L. M., 85, Westbourne Grove, and COSSOR, Ltd., A. C., 22, Highbury Grove, both in London. Jan. 24, 1933, No. 2328. [Class 40 (v).] In a wireless receiver which can be used for reproducing gramophone records, a changeover switch R, O, G in one position shortcircuits the pick-up P, U and in the other position short-circuits part of a grid-biassing resistance B in the cathode lead of the valve, so that it may be used as an anode-bend detector.
Patent GB-143817-A (GB)
Title: Improvements in the method and means for supplying pulverulent fuel to furnaces
IPC: F23K3/00
Filed: 1919-02-24
Abstract: 143,817. Muhlfeld, J. E. Feb. 24, 1919. Pulverulent-fuel burners.-Fuel is supplied by a screw conveyer 105 to the enlarged end 118 of a conduit 119 where it it is agitated by propeller blades 117 and mixed with an annular column of air supplied by a fan 115 through the conduit 114 and perforations 112<a>. The mixed fuel and air are supplied through the conduit 119 to the delivery nozzle 121 where it is subjected to the inductive influence of a jet of steam or other gaseous medium delivered by the ejector pipe 122. The nozzle 121 discharges into a conduit 120 communicating with the furnace and with the atmosphere at 120<a>. Instead of the driving-gear for the screw conveyer being located at the forward end of the screw as shown in Fig. 1, it may be arranged at the rear end and, as shown in Fig. 2, the conveyer then feeds the fuel through a pipe 125 surrounded by an annular chamber 126 to which air is supplied by a blower through openings 127 and from the atmosphere through valve-controlled open- Ings 128. In a further modification the end of the chamber 126 adjacent to the tender of the locomotive may be open to the atmosphere and outwardly flared. Fig. 4 shows a modification in which the fuel discharge pipe 125 is surrounded by a forwardly projecting tubular extension 114<a> of the blower conduit 114 and the flared open end of the delivery conduit .119. In a further modification, the blower is eliminated and an annular column of air is delivered to the fuel direct from the atmosphere through the enlarged open end of the conduit 119.
Patent GB-262708-A (GB)
Title: Improvements relating to operating devices applicable to automobile vehicles
IPC: B60Q1/14
Filed: 1926-01-27
Abstract: 262,708. Soc. Anon.des Nouvelles Inventions MÚcaniques et Electriques, (known as S.A.N.I.M.E.). Dec. 11, 1925, [Convention date]. Switches, mechanical, without quick-action; retractive switches. - The steering wheel of a motor vehicle is provided with an additional coaxial wheel which when tilted closes the contacts of a circuit, e.g. to an electric horn, and when moved in some other manner, e.g. when rotated or when tilted further, actuates some auxiliary mechanism. According to the construction shown in Fig. 3, the auxiliary wheel 1 is both tiltable and rotatable and carries a four-armed spring 7 which serves to support it. Rotation of the wheel 1 brings an arm 7 into engagement with one of two contacts 8 connected to two separate horn circuits. The selected circuit is then completed by tilting the wheel 1 which brings the centre portion of the contact spring 7 into engagement with a central contact 9. Fig. 4 shows a construction in which tilting of the wheel 1 causes a button 17 to press a contact spring 16 into engagement with a contact 8 and further tilting in the same direction so bends the spring 16 that it breaks contact at 8 and engages another contact 14. The contacts 8, 14 are connected to two sound devices. According to another modification, the wheel 1 when tilted closes the circuit to a sound device and when rotated in either direction closes a circuit to a " right " or " left " signalling device. Fig. 10 shows a form in which tilting of the wheel 1 brings a contact ring 29 into engagement with an annular contact 30 and rotation of the wheel and consequently of a shaft 28 actuates a device for controlling the air or fuel admission or the ignition of the engine. According to further modifications, the wheel 1 besides being tiltable in one or two stages for controlling sound circuits, is rotatable into four different positions for lighting various combinations of lamps on the vehicle. Specification 248,337 is referred to.
Patent GB-538524-A (GB)
Title: Improvements in or relating to magnetic field structures for induction heating devices
IPC: H05B6/14
Filed: 1940-02-07
Abstract: 538,524. Electric induction heating. REEDPRENTICE CORPORATION. Feb. 7, 1940, No. 2396. Convention date, March 1, 1939. [Class 39 (iii)] [Also in Group V] Electromagnetic heating apparatus for thermoplastic material comprises a cylinder 12 carrying a nozzle 14, each being provided with a heating unit of corresponding shape. A spool 10 with flanges 16-21<SP>1</SP> carries coils 21-24, the magnetic circuit of which is composed of the nozzle 12 and a number of longitudinal stacks of laminated sheets 25 of silicon steel. Each stack has legs 26, 27 extending through openings 28, 29 in the spool, the ends of the legs being in contact with the part 12 when the heater is in position. Eddy currents in the spool are minimized by providing longitudinal slots 34 between the openings 28, 29. Heating is effected by hysteresis losses in the closed magnetic circuit. The spool 13 and the corresponding magnetic circuit for the nozzle are similarly constructed, but are of conical form to fit over the nozzle. Asbestos insulation 50 may be provided between the spools and the conduit, and the temperature in the latter may be indicated by thermo-couples 51, 52. Specification 543,217 is referred to.
Patent GB-432783-A (GB)
Title: Improvements in or relating to the synchronisation of the beam of a cathode ray tube
IPC: H04N5/073
Filed: 1935-01-24
Abstract: 432,783. Television. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ, 12, Place des Etats-Unis, Montrouge, Seine, France. Jan. 24, 1935, Nos. 2436 and 2437. Convention dates, Jan. 25, 1934 and April 10, 1934. [Class 40 (iii)] The line - synchronizing signal is suppressed at the transmitter at least once per image and at the receiver the grid-controlled gas - discharge tube 17 discharging at the image frequency is controlled by the action of this suppression on the tube 4 discharging at the line-scanning frequency. Owing to the suppression of the synchronizing signal the condenser 8 is charged to an abnormally large voltage and its discharge produces an impulse in an inductively coupled winding 22 which is sufficiently strong to overcome a grid-bias 23 and cause the tube 17 to discharge. Alternatively, the plate 6 is coupled to the grid 19 of the tube 17 through a condenser, Fig. 2 (not shown). Specification 423,098 is referred to.
Patent GB-877140-A (GB)
Title: Device for feeding panels
Inventor: WINKEL HERBERT CARL
IPC: H01M10/14
Filed: 1960-01-22
Abstract: 877,140. Feeding panels from magazines. WINKEL MACHINE CO. Inc. Jan. 22, 1960, No. 2510/60. Class 117. Battery panels are stacked in a magazine 8 (Fig. 3). Prior to discharge therefrom, the stack is lifted by lifting plates 14, 14A and the lowermost panel free from superposed weight is then shifted sideways by movable plate 101 so that the panel engages beneath retaining bar 117, and then is discharged by reciprocating shuttles 51. Plate 101 is carried by lever 102 pivoted at 103 and is operated by the shuttle 51 via cam means. Lifting plates 14 (or 14A) (Figs. 2, 9). Each lifting plate is provided with an element 33 connected to lever 41 pivoted at 43 so that, by means of cam follower 43, the lifting plate 14 is caused to rise and, as it rises, it moves inwards by engagement of cam 22 thereon with fixed rollers 21 so that the two plates, by means of toothed members 16, engage the stack and lift it off the lowermost panel. Shuttle 51 (Fig. 7). The shuttle has engaging plate 66 which is pivoted resiliently at 61 to block 59 and is adjustable longitudinally at 55, the whole being carried by carriage 72 which runs on wheels 91 and is guided by wheels 81, 82 and is operated by actuator 94 (not shown). Specification 790,275 is referred to.
Patent GB-206416-A (GB)
Title: Improvements relating to spring surfaces suitable for motor-car seats, chair seats, mattresses and the like
IPC: B60N2/70
Filed: 1923-01-27
Abstract: 206,416. Morris, W. E. Jan 27, 1923. Spring surfaces.-A spring surface for seats, mattresses, &c. comprises coiled springs b connected together at both ends by tension springs d and also connected together at their middle portions by tension springs f. Specification 24117/07 is referred to.
Patent GB-154232-A (GB)
Title: Improvements in and relating to methods of and means for amplifying electrical variations
IPC: H04B1/16
Filed: 1916-02-22
Abstract: 154,232. British Thomson - Houston Co., (General Electric Co.). Feb. 22, 1916. Relays, non-circuit - closing. - Electric variations are applied to a " negative resistance " and an ordinarv resistance connected in parallel. Amplified current variations are produced in each of the resistances. The negative resistance 2 is such as to be independent of the frequency; it may be of the type described in Specification 15555/15. As shown, it consists of a vacuum tube having an incandescent cathode 6, an anode 9 of grid form, and a third electrode 11 consisting of a metal cylinder situated so that it can receive primary electrons from the cathode, while secondary electrons from the cylinder travel to the anode 9. A battery 4 impresses a constant potential difference on the cathode 6 and anode 9. Connexion is made from the third electrode 11 through the positive resistance 1 to an intermediate point on the battery. The potential thus imparted to the third electrode 11 is such that an increase of potential causes a greater increase in the secondarv electrons lost by the third electrode than in the primary electrons received, in consequence of the increasing velocity of the primary electrons. Preferably this potential is chosen so that no current flows through the resistances when the current to be amplified is zero, but when small variations in a large current are to be magnified, the connexion to the battery is modified accordingly. As shown, a photo-electric tube 3, with a cathode of potassium or the like, is in series with both resistances but may be replaced by the secondary of a transformer having its primary in a telephone or other circuit. A device 14 for measuring or utilising the magnified current or potential variations is connected in series or parallel with the positive resistance 1.
Patent GB-346871-A (GB)
Title: Improvements in or relating to harvesting machines
IPC: A01D41/06
Filed: 1930-01-25
Abstract: 346,871. Reaping-machines. CATERPILLAR TRACTOR CO., San Leandro, California, U.S.A.-(Assignees of Wilson, M. ; of Caterpillar Tractor Co., Peoria, Illinois, U.S.A.) Jan. 25, 1930, No. 2672. Convention date, Feb. 20, 1929. [Class 6 (iii).] Grain cut by a header 6 is carried by a conveyer 7 up a slope over the side frame of the machine, and is discharged on to a shoot 11 that lays it on the stubble. The angle of the shoot may be adjusted by a hand-lever 22. The conveyer 7 may be assisted by an upper conveyer 31, and a deflector, formed by adjustable rods 32, fitted to direct the grain into the shoot.
Patent GB-1531073-A (GB)
Title: Process for preparing magnesia of a large specific surface area
IPC: C01F5/16
Filed: 1976-01-23
Abstract: 1531073 High surface-area magnesia VEITSCHER MAGNESITWERKE-ACTIENGES 23 Jan 1976 [31 Jan 1975] 02685/76 Heading CIA Granulated magnesium hydroxide is first prepared by agglomerating finely divided magnesia by the addition of sufficient water to act as a binding agent for producing granules and for hydrating at least part of the magnesia, and the product then thermally decomposed to produce magnesia of large specific surface area.
Patent GB-356084-A (GB)
Title: Improvements in mountings or settings for gems or the like
IPC: A44C17/02
Filed: 1931-01-28
Abstract: 356,084. Jewellery &c. CROSBEE & SONS, Ltd., A. W., CROSSBEE, C. H., and CROSBEE, W. A., 7, Vyse Street, Birming- ham. Jan. 28, 1931, No. 2731. [Class 43.] A mounting for gems or the like comprises a holder 1 having a ring or annulus 5 for receiving a gem 6 and also having retaining claws 4, and both the ring 5 and the claws 4 are bent or contracted over the edge 7 of the gem. The holder 1 may be of cage-like for:n and the ring 5 may be secured to or integral with it, and positioned below the claws 4. The diameter of the upper edge 8 of the ring is greatei than that of the gem, and the diameter of the lower edge is less, so that the gem may be inserted on to the ring, whereafter the upper edge 8 and claws 4 may be bent over to retain it.
Patent GB-396099-A (GB)
Title: Improvements in or relating to oil burners
IPC: F23D11/10
Filed: 1932-01-30
Abstract: 396,099. Spray-producers. DOBBIN, J. C., 26, Sherland Road, Twickenham, Middlesex. Jan. 30, 1932, No. 2865. [Class 69 (iii).] A spray burner comprises a casing 1 having an internal bore tapering at one end to a flat surface 1 formed with a discharge orifice 2, a central piece 3 formed with four longitudinal air passages 4 and an axial oil passage 5, and a locking ring 9 which holds the central piece 3 with its front end in contact with the surface 1. The front end of the piece 3 is reduced in diameter and is formed with four slots 8 arranged tangentially to the passage 5 so that the oil passing from the passage 5 to the orifice 2 will be atomized by the air discharged through the slots 8. In a modified construction the central piece 3 is held in contact with the surface 1<1> by a spring.
Patent GB-1360367-A (GB)
Title: Derivatives of 4,-aminomethyl-dibenzo-b,e- 11-oxepine-2,- spiro- 1,3, -dioxolane their method of preparation and their thera peutic application
IPC: A61P9/12
Filed: 1973-01-19
Abstract: 1360367 Alkyl derivatives of 4<SP>1</SP>-aminomethyldibenzo - [b,e] - 11 - oxepine - 2<SP>1</SP> - spiro - 1<SP>1</SP>,3<SP>1</SP>- dioxolane DELALANDE SA 19 Jan 1973 [15 Dec 1972] 2879/73 Addition to 1359951 Heading C2C Alkyl derivatives of 4<SP>1</SP>-aminomethyl-dibenzo- [b,e] - 11 - oxepine - 2<SP>1 </SP>- spiro - 1 1 ,3<SP>1</SP> - dioxolane of formula which R represents an alkyl group having 1 to 4 carbon atoms are claimed per se. These compounds are prepared by condensing, in a benzene medium, 4<SP>1 </SP>- bromomethyl - dibenzo - [b,e]- 11 - oxepine - 2<SP>1</SP>- spiro - 11,31 - dioxolane of formula with a primary amine of formula R-NH 2  in which R has the same significance as in above. The compounds are used as pharmaceuticals.
Patent GB-354266-A (GB)
Title: Method of producing transfers
IPC: B41M3/12
Filed: 1930-01-28
Abstract: 354,266. Transfers. MASA GES. ZUR HERSTELLUNG KœNSTLICHER OBERFLACHEN, 4, Alexanderufer, Berlin. Jan. 28, 1930, No. 2907. Convention date, Feb. 1, 1929. Void [Published under Sect. 91 of the Acts]. [Class 100 (ii).] Transfers are printed in one or more colours by the intaglio printing process. The picture may be transferred to a celluloid or other article or base by the use of shellac or copal varnish. It is stated that if it is desired to transfer the picture by means of nitrocellulose lacquer or to coat the transferred picture with such lacquer, " factising " varnish should be mixed with the colours with which the transfers are printed.
Patent GB-587890-A (GB)
Title: Improvements in or relating to the continuous drying of material in solid form and to the half-carbonizing or carbonizing of peat and other carbonaceous piece material
IPC: C10B53/02
Filed: 1944-02-17
Abstract: 587,890. Carbonizing processes; peat. PILO, C.-W. Feb. 17, 1944, Nos. 2991, 2992, 2993 and 2994. Convention dates, Dec. 22, 1942, Feb. 4, 1943, Feb. 16, 1943, and March 10, 1943. [Classes 50 and 55 (i)] Peat, wood &c. are subjected whilst descending a vertical shaft to a continuous heat treatment in the upper part with hot air or gases and in a lower part with steam the circuit of which includes a superheater. Air preheated by passage over a vapour condenser 8 together with flue gases from the superheater 5, is blown tangentially into an annular chamber 16 surrounding the shaft which it enters through downwardly directed openings 17. Evolved vapours are kept in circulation through the shaft and superheater by a fan 19, excess being led to the condenser 8. A cooling chamber 2 may be separated from the shaft by a shutter 14 which is removed at intervals to allow the material after compression by screens 13 to fall into the chamber. If the material is to be completely carbonized a separate circuit including a condenser for the gas-vapour mixture may be .provided and some of the material may be burnt by admitting a small amount of air. The coke may be crushed and conveyed out of contact with air to a briquette press.
Patent GB-368927-A (GB)
Title: Improvements in or relating to automatic and semi-automatic telephone systems
IPC: H04Q1/36
Filed: 1931-01-30
Abstract: 368,927. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and HUMPHRIES, H. E., 47A, Lewisham Hill, both in London. Jan. 30, 1931, No. 3036. [Class 40 (iv).] In an impulse repeater, in order to avoid possible mutilation of the first impulse due to energy stored in the high-impedance windings I, D, discharging through the impulse relay A, a low-resistance shunt R or a direct shortcircuit is connected across the outgoing loop prior to or at the commencement of the first impulse, preferably by make-before-break contacts a2 of relay A. The shunt circuit also acts, in the event of a momentary release of relay A when reversal takes place, to render relay D slow-to-release to prevent opening of the outgoing loop.
Patent GB-139861-A (GB)
Title: Improvements in telephone instruments
IPC: H04M1/02
Filed: 1919-02-08
Abstract: 139,861. Western Electric Co., and Amberg, V. Feb. 8, 1919. Telephones, mounting and supporting.-A desk stand is provided with means to guard against false operation of the switch when the stand is lifted. To prevent the stand from being lifted by grasping the cradle 2, a bracket 6 fixed to the base 3 is placed immediately below the cradle when the cradle is in its normal or depressed position.
Patent GB-1097262-A (GB)
Title: Treatment of aluminum
IPC: C23G1/12
Filed: 1965-01-20
Abstract: Aluminium or an alloy thereof is cleaned prior to forming a boehmite layer as described in Specification 1,097,261 by immersing in or spraying with a solution containing a sulphonic acid, borate ions, and anions of a metal of Group V or VI, e.g. chromate.  The pH is between 0.5 and 2, and the temperature 150 to 170 DEG F.  In an example a bath consists of 1 litre of water, 10 gms. of 5-nitro-o-toluene sulphonic acid, 5 gms. boric acid, 10 ml. conc. nitric acid, 3 gms. of chromic acid, and 1 gm. of an ethylene oxide addend of t-octyl phenol.  The aluminium may be first cleaned in a bath of sodium carbonate, sodium tetraborate, an ethylene oxide addend of t-octyl phenol, and the condensation product of polypropylene glycol and ethylene oxide.
Patent GB-461100-A (GB)
Title: Improvements relating to weighing devices for use in connection with cigarette-making machines
IPC: A24C5/34
Filed: 1936-02-03
Abstract: 461,100. Automatic control systems. BRINKMANN AKT.-GES., M. Feb. 3, 1936, No. 3196. Convention date, Feb. 11, 1935. [Class 38 (iv)] [Also in Group XL] Weight.-An apparatus for checking the output of cigarette-making machines comprises means for weighing the cigarettes and transferring the results of the weighings to a device which regulates the supply of tobacco to the cigarette-making machine, in combination with an electro-optical counting device and an endless cigarette-carrying trough chain which holds the cigarettes in spaced relationship during their counting by the electro-optical device. The completed cigarettes are received from the machine by a trough chain 4 and are carried forward to the packing mechanism. The cigarettes pass under an optical projector 1 co-operating with a photo-cell 2 for counting the cigarettes. A rotating segment 7 takes off a number of the cigarettes and delivers them by way of a shoot 10 to a scale pan 6. The balance beam carries a shutter 12 movable in front of a screen 13 pierced by two apertures 14, 15 through which beams of light from projectors 18, 19 pass to photo-cells 16, 17. If the shutter moves from the normal position shown and cuts off either of the light beams, electric devices are set in operation to increase or decrease the supply of tobacco to the machine. Specification 376,605, [Group XVIII], is referred to.